To the œuvre of Markus Bongartz also belongs patches in Max/MSP. Max/MSP ist a software to realise computer music in real time. It also allows to build „instruments“, which works like self standing programs.

GrainBOw ist is a programm for granular synthesis, but in general also an instrument to manipulate sound files.

Speck isa tool for testing and manipulating of spectra, but also a tool for manipulating of lists, frequencies ant tones.